HC₅N

Cyanobutadiyne
Flags: Detected, RATE12
Empirical: C₅HN
Mass: 75 amu
Dipole moment: 4.330 D
Added to system: 2003-04-28 18:00:51

10 HC₅N formation reactions

	Reaction	α	β	γ	T_l - T_u (K)
1	H + C₅N^- → HC₅N + e^-	5.80e-10	0.00	0.00	10 - 41000
2	N + C₅H^- → HC₅N + e^-	5.00e-12	0.00	0.00	10 - 300
3	CH₃C₅NH⁺ + e^- → HC₅N + CH₃	1.00e-6	-0.30	0.00	10 - 300
4	H₃C₅N⁺ + e^- → HC₅N + H₂	1.00e-6	-0.30	0.00	10 - 300
5	HC₅NH⁺ + e^- → HC₅N + H	9.20e-7	-0.70	0.00	10 - 1000
6	H⁺ + CH₃C₅N → HC₅N + CH₃⁺	9.00e-9	-0.50	0.00	10 - 41000
7	C₄H + HNC → HC₅N + H	2.50e-10	-0.20	0.00	10 - 300
8	C₄H + NCCN → HC₅N + CN	2.00e-13	0.00	0.00	10 - 300
9	CN + HC₄H → HC₅N + H	2.72e-10	-0.52	19.00	10 - 300
10	N + C₅H₂ → HC₅N + H	1.00e-13	0.00	0.00	10 - 300

	Reaction	α	β	γ	T_l - T_u (K)
1	H⁺ + HC₅N → HC₅N⁺ + H	4.00e-9	-0.50	0.00	10 - 41000
2	HC₅N + CRPHOT → C₄H + CN	1.30e-17	0.00	875.00	10 - 41000
3	HC₅N + CRPHOT → C₅N + H	1.30e-17	0.00	875.00	10 - 41000
4	C⁺ + HC₅N → C₅H⁺ + CN	6.00e-9	-0.50	0.00	10 - 41000
5	H₃⁺ + HC₅N → HC₅NH⁺ + H₂	8.00e-9	-0.50	0.00	10 - 41000
6	HCO⁺ + HC₅N → HC₅NH⁺ + CO	8.00e-9	-0.50	0.00	10 - 41000
7	He⁺ + HC₅N → C₃N + C₂H⁺ + He	1.00e-9	-0.50	0.00	10 - 41000
8	He⁺ + HC₅N → C₄H⁺ + CN + He	1.00e-9	-0.50	0.00	10 - 41000
9	HC₅N + PHOTON → C₄H + CN	5.00e-10	0.00	1.80	10 - 41000
10	HC₅N + PHOTON → C₅N + H	5.00e-10	0.00	1.80	10 - 41000
11	C₂H₂⁺ + HC₅N → H₃C₇N⁺ + PHOTON	2.00e-12	-2.50	0.00	10 - 300
12	C₄H₂⁺ + HC₅N → H₃C₉N⁺ + PHOTON	2.00e-12	-2.50	0.00	10 - 300
13	CH₃⁺ + HC₅N → CH₃C₅NH⁺ + PHOTON	8.60e-11	-1.40	0.00	10 - 300

Variation of log fractional abundance (relative to H₂) with log time (years) in a dark cloud model. Ref. RATE12 paper.

HC5N